A closed cylindrical water tank is made from a plastic sheet. Its diameter is 1.4m and height 3.5m. Find! 1) Lateral (curved) surface area of the tank, (1) The actual area of the plastic sheet used if I/13 of sheet actually used was wasted in making the tank.
Answers
❐QuEsTiOn,
A closed cylindrical water tank is made from a plastic sheet. Its diameter is 1.4m and height 3.5m. Find! 1) Lateral (curved) surface area of the tank, (1) The actual area of the plastic sheet used if I/13 of sheet actually used was wasted in making the tank.
↪Given,
- The Diameter of closed cylindrical water tank = 1.4 cm
- The height = 3.5 cm
- The radius = 1.4 cm/ 2
= 0.5 cm
↪To find,
- The actual area of the plastic sheet used if I/13 of sheet actually used was wasted in making the tank.
❐SoLuTiOn,
The total surface area of the cylindrical tank
↪ Curved Surface area + 2 × area of the base
↪Let's Solve,
↪ 2πrh + 2πr² = 2πr( h + r )
↪ 2 × 22/7 × 0.7 × ( 3.5 + 0.7 )
↪ 4.4 × 4.2
↪ 18.48cm²
↪The waisted sheet = 1/3 × 18.48 = 6.16cm²
↪The total plastic sheet = 18.48 + 6.16 = 24.64cm²
❐FiNal AnSwEr,
↪The total plastic sheet = 18.48 + 6.16 = 24.64cm²
↪The waisted sheet = 1/3 × 18.48 = 6.16cm²
❥Hope you get your AnSwEr.
❐QuEsTiOn,
A closed cylindrical water tank is made from a plastic sheet. Its diameter is 1.4m and height 3.5m. Find! 1) Lateral (curved) surface area of the tank, (1) The actual area of the plastic sheet used if I/13 of sheet actually used was wasted in making the tank.
↪Given,
The Diameter of closed cylindrical water tank = 1.4 cm
The height = 3.5 cm
The radius = 1.4 cm/ 2
= 0.5 cm
↪To find,
The actual area of the plastic sheet used if I/13 of sheet actually used was wasted in making the tank.
❐SoLuTiOn,
The total surface area of the cylindrical tank
↪ Curved Surface area + 2 × area of the base
↪Let's Solve,
↪ 2πrh + 2πr² = 2πr( h + r )
↪ 2 × 22/7 × 0.7 × ( 3.5 + 0.7 )
↪ 4.4 × 4.2
↪ 18.48cm²
↪The waisted sheet = 1/3 × 18.48 = 6.16cm²
↪The total plastic sheet = 18.48 + 6.16 = 24.64cm²
❐FiNal AnSwEr,
↪The total plastic sheet = 18.48 + 6.16 = 24.64cm²
↪The waisted sheet = 1/3 × 18.48 = 6.16cm²
❥Hope you get your AnSwEr.